Multicomp PRO DC Power Supply User Manual
Models: 72-13300, 72-13310, 72-13320 & 72-13330
Information on Waste Disposal for Consumers of Electrical & Electronic Equipment
When this product reaches the end of its life, it must be treated as Waste Electrical & Electronic Equipment (WEEE). WEEE marked products must not be mixed with general household waste but kept separate for the treatment, recovery, and recycling of the materials used. Contact your local authority for details of recycling schemes in your area.
Made in China
Addresses: 150 Armley Road, Leeds, LS12 2QQ (UK); Riverside One, Sir John Rogerson Quay, Dublin 2, D02 X576 (EU)
Manual Revision: 2.0
Safety Precautions
When using electrical appliances, basic safety precautions should always be followed to reduce the risk of fire, electric shock, and injury to persons or property. Read all instructions before using the appliance and retain for future reference.
- Check that the voltage indicated on the rating plate corresponds with the local network before connecting the appliance to the mains power supply.
- Do not operate this appliance with a damaged plug or cord, after a malfunction, or after being dropped or damaged in any way.
- Check the product for any damage before use. Should you notice any damage on the cable or casing, do not use.
- This appliance contains no user-serviceable parts. All repairs should only be carried out by a qualified engineer. Improper repairs may place the user at risk of harm.
- Do not block or obstruct the cooling fan vent opening.
- Avoid severe impacts or rough handling that leads to damage.
- Do not discharge static electricity.
- This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory, or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved.
- Children should be supervised to ensure that they do not play with the appliance.
- Always disconnect from the mains when the product is not in use or before cleaning.
- Do not use the appliance for any purpose other than that for which it is designed.
- Do not operate or store in an environment of high humidity or where moisture may enter the product, as this can reduce insulation and lead to electric shock.
Product Overview
Main Features
- High accuracy/resolution 0-30V DC power supply
- Low noise cooling fan controlled by heatsink temperature
- Constant voltage/constant current
- Digital panel control - 4 digit display
- Software calibration
- Button lock function
- Output ON/OFF control
- Standard interfaces: USB, RS232 & LAN
- Low ripple & low noise
- Series and parallel functions
What's Included
- Power Supply Unit
- Mains power lead
- User Manual
Maintenance
Cleaning
- Use a damp cloth and a small amount of liquid detergent if necessary.
- Never submerge the power supply in liquid or allow any liquid to enter the case.
- Do not use any chemicals, abrasives, or solvents that could damage the power supply casing.
Changing the Fuse
- Replace the fuse only with one of exactly the same type and rating.
- Disconnect the mains power and unplug the mains lead before replacing the fuse.
Fuse Ratings by Model
| Model | 220 / 230V |
|---|---|
| 72-13300 & 72-13320 | T3A / 250V |
| 72-13310 & 72-13330 | T5A / 250V |
Input current: 72-13300-2.11A, 72-13320-2.12A, 72-13310-3.22A, 72-13330-3.23A
Specifications
| Model | 72-13300 & 72-13320 | 72-13310 & 72-13330 |
|---|---|---|
| Voltage Range | 0-30V | 0-30V |
| Current Range | 0-3A | 0-5A |
| Load Regulation | ||
| Voltage | ≤ 0.01%+3mV | < 0.01%+5mV |
| Current | ≤ 0.1%+5mA | ≤ 0.1%+10mA |
| Line Regulation | ||
| Voltage | ≤ 0.01%+3mV | ≤ 0.01%+3mV |
| Current | ≤ 0.1%+3mA | ≤ 0.1%+3mA |
| Setup Resolution | ||
| Voltage | 10mV | 10mV |
| Current | 1mA | 1mA |
| Setup Accuracy (25°C±5°C) | ||
| Voltage | ≤ 0.5%+20mV | ≤ 0.5%+20mV |
| Current | ≤ 0.5%+5mA | ≤ 0.5%+10mA |
| Ripple (20-20M) | ||
| Voltage | ≤ 1mVrms | ≤ 2mVrms |
| Current | ≤ 3mArms | ≤ 3mArms |
| Temp Coefficient | ||
| Voltage | ≤ 150ppm | ≤ 150ppm |
| Current | ≤ 150ppm | ≤ 150ppm |
| Read Back Resolution | ||
| Voltage | 10mV | 10mV |
| Current | 1mA | 1mA |
| Read Back Temp Coefficient | ||
| Voltage | ≤ 150ppm | ≤ 150ppm |
| Current | ≤ 150ppm | ≤ 150ppm |
| Reaction Time | ||
| Voltage Rise | ≤ 100ms | ≤ 100ms |
| Voltage Drop | ≤ 100ms (10% rated load) | ≤ 100ms (10% rated load) |
| Load Regulation of Parallel | ||
| Voltage | ≤ 0.1%+0.1V | ≤ 0.1%+0.1V |
| Load Regulation of Series | ||
| Voltage | ≤ 0.1%+0.1V | ≤ 0.1%+0.1V |
| CH3 Specifications | ||
| Voltage Range | 2.5V/3.3V/2.5V | 2.5V/3.3V/5V |
| Current Range | 3A | 3A |
| Voltage Accuracy | +50mV | +50mV |
| Load Regulation | +50mV | +50mV |
Series or Parallel Operation
Series Operation
- To enter Series mode, press and hold the SER button. The SER LED on the display will illuminate to confirm the setting.
- Initially, the default master channel is channel 2 with channel 1 as slave and shielded.
- Press the ON/OFF button to switch the output on or off.
- Connection terminals are shown in the diagram.
Max voltage in series: 60V for all models. Max current in series: 3A for 72-13300/72-13320, 5A for 72-13310/72-13330.
Parallel Operation
- To enter Parallel mode, press and hold the PARA button. The PARA LED on the display will illuminate to confirm the setting.
- Initially, the default master channel is channel 2 with channel 1 as slave and shielded.
- Press the ON/OFF button to switch the output on or off.
- Connection terminals are shown in the diagram.
Voltage or Current Mode Setting
Channel 1 or 2 Setting
- Press the adjusting control of either Channel 1 or 2, and the corresponding digital readout will start blinking.
- Rotate the control to increase or decrease the voltage or current displayed on the digital readout.
Adjusting Voltage on Channel 3
- Press the Channel 3 button for 2 seconds until the current set voltage setting LED illuminates.
- Pressing repeatedly cycles through the 2.5V, 3.3V, and 5V settings, with the corresponding LED illuminating to indicate the selection.
Front Panel Description
The front panel features:
- Power Button: [Power Symbol] Turns the unit on/off.
- Series/Parallel Buttons: [SER] and [PARA] buttons to select series or parallel operation. Corresponding LEDs indicate the selected mode.
- Voltage/Current Adjustment Controls: Rotary knobs labeled PUSH(V) FINE/COARSE and PUSH(A) FINE/COARSE for adjusting voltage and current for Channels 1 and 2.
- Channel 3 Controls: A CH3 button to select voltage settings (2.5V, 3.3V, 5V) and an On/Off button for the output.
- Output Terminals: Binding posts for CH1 (0-30V), GND, CH2 (0-30V), GND, and CH3 (2.5V, 3.3V, 5V).
- Display: Four digital displays showing Voltage (V) and Current (A) for CH1 and CH2, with indicators for Constant Voltage (CV) and Constant Current (CC) modes.
- Front Panel LEDs: Indicate Series (SER), Parallel (PARA), and Channel 3 voltage settings.
Rear Panel Description
The rear panel features:
- LAN Interface: For network connectivity.
- USB Interface: For USB connectivity.
- RS232 Interface: For serial communication.
- Ventilation Grille: Ensures proper airflow for cooling.
- Mains Power Socket: IEC connector for power cord.
- Labels: Include Batch Number, Model Information, Voltage Rating, Fuse Rating, and safety warnings.
Front LED Display Explanation
The front LED display provides real-time information:
- Voltage Display: Shows the set or output voltage for each channel.
- Current Display: Shows the set or output current for each channel.
- CV/CC Indicators: Light up to indicate whether the power supply is operating in Constant Voltage (CV) or Constant Current (CC) mode.
- Mode Indicators: PARA and SER LEDs indicate if the unit is configured for parallel or series operation.
